[INFO] updating cached repository https://github.com/ickshonpe/rust-data-structures [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] af0bf8f5e24687dad2a324e4518931fdbad50590 [INFO] testing ickshonpe/rust-data-structures against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fickshonpe%2Frust-data-structures" "/workspace/builds/worker-12/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ickshonpe/rust-data-structures on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/ickshonpe/rust-data-structures [INFO] finished tweaking git repo https://github.com/ickshonpe/rust-data-structures [INFO] tweaked toml for git repo https://github.com/ickshonpe/rust-data-structures written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/ickshonpe/rust-data-structures already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 5074eb0f22259b8d9401915b191a5584cea5edf6e81e40223e87c092f2a14a62 [INFO] running `"docker" "start" "-a" "5074eb0f22259b8d9401915b191a5584cea5edf6e81e40223e87c092f2a14a62"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling libc v0.2.29 [INFO] [stderr] Compiling scopeguard v0.3.2 [INFO] [stderr] Compiling either v1.1.0 [INFO] [stderr] Compiling rayon-core v1.2.1 [INFO] [stderr] Compiling futures v0.1.14 [INFO] [stderr] Compiling coco v0.1.1 [INFO] [stderr] Compiling rand v0.3.16 [INFO] [stderr] Compiling num_cpus v1.6.2 [INFO] [stderr] Compiling rayon v0.8.2 [INFO] [stderr] Compiling data-structures v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/list.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `list::*` [INFO] [stderr] --> src/main.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | use list::*; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge_sort` [INFO] [stderr] --> src/merge_sort.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn merge_sort(xs: &[T]) -> Vec { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge` [INFO] [stderr] --> src/merge_sort.rs:14:8 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn merge(mut left: &[T], mut right: &[T]) -> Vec { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `id` [INFO] [stderr] --> src/tricks.rs:4:8 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn id(x: T) -> T { [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: type alias is never used: `Link` [INFO] [stderr] --> src/list.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | type Link = Option>>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back` [INFO] [stderr] --> src/list.rs:67:8 [INFO] [stderr] | [INFO] [stderr] 67 | fn back(&mut self) -> &mut Link { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back_id` [INFO] [stderr] --> src/list.rs:77:8 [INFO] [stderr] | [INFO] [stderr] 77 | fn back_id(&mut self) -> &mut Link { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back_tmp` [INFO] [stderr] --> src/list.rs:87:8 [INFO] [stderr] | [INFO] [stderr] 87 | fn back_tmp(&mut self) -> &mut Link { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `quick_sort` [INFO] [stderr] --> src/quick_sort_slice.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | pub fn quick_sort(data: &mut [T]) { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `partition` [INFO] [stderr] --> src/quick_sort_slice.rs:13:4 [INFO] [stderr] | [INFO] [stderr] 13 | fn partition(data: &mut [T]) -> usize { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `example` [INFO] [stderr] --> src/quick_sort_slice.rs:28:8 [INFO] [stderr] | [INFO] [stderr] 28 | pub fn example() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `quick_sort` [INFO] [stderr] --> src/parallel_quick_sort.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | pub fn quick_sort(data: &mut [T]) { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `split_at_exclusive_mut` [INFO] [stderr] --> src/parallel_quick_sort.rs:18:8 [INFO] [stderr] | [INFO] [stderr] 18 | pub fn split_at_exclusive_mut(data: &mut [T], p: usize) -> (&mut [T], &mut [T]) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `partition` [INFO] [stderr] --> src/parallel_quick_sort.rs:24:4 [INFO] [stderr] | [INFO] [stderr] 24 | fn partition(data: &mut [T]) -> usize { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `example` [INFO] [stderr] --> src/parallel_quick_sort.rs:39:8 [INFO] [stderr] | [INFO] [stderr] 39 | pub fn example() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 16 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.71s [INFO] running `"docker" "inspect" "5074eb0f22259b8d9401915b191a5584cea5edf6e81e40223e87c092f2a14a62"` [INFO] running `"docker" "rm" "-f" "5074eb0f22259b8d9401915b191a5584cea5edf6e81e40223e87c092f2a14a62"` [INFO] [stdout] 5074eb0f22259b8d9401915b191a5584cea5edf6e81e40223e87c092f2a14a62 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] a0b0c83cc09a7c27716f69b3dcac5d061457af340f9628aa45f7da27fea1ec1c [INFO] running `"docker" "start" "-a" "a0b0c83cc09a7c27716f69b3dcac5d061457af340f9628aa45f7da27fea1ec1c"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling data-structures v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/list.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `list::*` [INFO] [stderr] --> src/main.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | use list::*; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/list.rs:239:17 [INFO] [stderr] | [INFO] [stderr] 239 | let mut n = list.peek_mut().unwrap(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge_sort` [INFO] [stderr] --> src/merge_sort.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn merge_sort(xs: &[T]) -> Vec { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge` [INFO] [stderr] --> src/merge_sort.rs:14:8 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn merge(mut left: &[T], mut right: &[T]) -> Vec { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `id` [INFO] [stderr] --> src/tricks.rs:4:8 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn id(x: T) -> T { [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: type alias is never used: `Link` [INFO] [stderr] --> src/list.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | type Link = Option>>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back` [INFO] [stderr] --> src/list.rs:67:8 [INFO] [stderr] | [INFO] [stderr] 67 | fn back(&mut self) -> &mut Link { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back_id` [INFO] [stderr] --> src/list.rs:77:8 [INFO] [stderr] | [INFO] [stderr] 77 | fn back_id(&mut self) -> &mut Link { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back_tmp` [INFO] [stderr] --> src/list.rs:87:8 [INFO] [stderr] | [INFO] [stderr] 87 | fn back_tmp(&mut self) -> &mut Link { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `example` [INFO] [stderr] --> src/quick_sort_slice.rs:28:8 [INFO] [stderr] | [INFO] [stderr] 28 | pub fn example() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `example` [INFO] [stderr] --> src/parallel_quick_sort.rs:39:8 [INFO] [stderr] | [INFO] [stderr] 39 | pub fn example() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 12 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.20s [INFO] running `"docker" "inspect" "a0b0c83cc09a7c27716f69b3dcac5d061457af340f9628aa45f7da27fea1ec1c"` [INFO] running `"docker" "rm" "-f" "a0b0c83cc09a7c27716f69b3dcac5d061457af340f9628aa45f7da27fea1ec1c"` [INFO] [stdout] a0b0c83cc09a7c27716f69b3dcac5d061457af340f9628aa45f7da27fea1ec1c [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d4a73b386c37818061346d83da8a3873bebb629f80976006f455bd39f123a55e [INFO] running `"docker" "start" "-a" "d4a73b386c37818061346d83da8a3873bebb629f80976006f455bd39f123a55e"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/list.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `list::*` [INFO] [stderr] --> src/main.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | use list::*; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/list.rs:239:17 [INFO] [stderr] | [INFO] [stderr] 239 | let mut n = list.peek_mut().unwrap(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge_sort` [INFO] [stderr] --> src/merge_sort.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn merge_sort(xs: &[T]) -> Vec { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge` [INFO] [stderr] --> src/merge_sort.rs:14:8 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn merge(mut left: &[T], mut right: &[T]) -> Vec { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `id` [INFO] [stderr] --> src/tricks.rs:4:8 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn id(x: T) -> T { [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: type alias is never used: `Link` [INFO] [stderr] --> src/list.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | type Link = Option>>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back` [INFO] [stderr] --> src/list.rs:67:8 [INFO] [stderr] | [INFO] [stderr] 67 | fn back(&mut self) -> &mut Link { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back_id` [INFO] [stderr] --> src/list.rs:77:8 [INFO] [stderr] | [INFO] [stderr] 77 | fn back_id(&mut self) -> &mut Link { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back_tmp` [INFO] [stderr] --> src/list.rs:87:8 [INFO] [stderr] | [INFO] [stderr] 87 | fn back_tmp(&mut self) -> &mut Link { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `example` [INFO] [stderr] --> src/quick_sort_slice.rs:28:8 [INFO] [stderr] | [INFO] [stderr] 28 | pub fn example() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `example` [INFO] [stderr] --> src/parallel_quick_sort.rs:39:8 [INFO] [stderr] | [INFO] [stderr] 39 | pub fn example() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 12 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/data_structures-1d44f8a41ffaefc2 [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test list::test_len ... ok [INFO] [stdout] test parallel_quick_sort::test_2 ... ok [INFO] [stdout] test parallel_quick_sort::test_1 ... ok [INFO] [stdout] test quick_sort::test_1 ... ok [INFO] [stdout] test quick_sort_slice::test_2 ... ok [INFO] [stdout] test quick_sort::test_2 ... ok [INFO] [stdout] test quick_sort_slice::test_1 ... ok [INFO] [stdout] test list::test_1 ... ok [INFO] [stdout] test list::test_2 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "d4a73b386c37818061346d83da8a3873bebb629f80976006f455bd39f123a55e"` [INFO] running `"docker" "rm" "-f" "d4a73b386c37818061346d83da8a3873bebb629f80976006f455bd39f123a55e"` [INFO] [stdout] d4a73b386c37818061346d83da8a3873bebb629f80976006f455bd39f123a55e